CN203677109U - Optical fiber communication-based data transmission system of digital medical imaging equipment - Google Patents
Optical fiber communication-based data transmission system of digital medical imaging equipment Download PDFInfo
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- CN203677109U CN203677109U CN201320881701.1U CN201320881701U CN203677109U CN 203677109 U CN203677109 U CN 203677109U CN 201320881701 U CN201320881701 U CN 201320881701U CN 203677109 U CN203677109 U CN 203677109U
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Abstract
An optical fiber communication-based data transmission system of digital medical imaging equipment is provided with a panel X ray sensor for receiving X rays; the output end of the panel X ray sensor is connected with a data sending module; the data sending module is connected with a data collecting module by an optical fiber; the data collecting module is connected with a computer by a PCI-E interface; the data sending module is provided with a data transceiving unit and a first optical communication unit connected in sequence; the signal input end of the data transceiving unit is connected with the signal output end of the panel X ray sensor; the signal output end of the first optical communication unit is connected with the data collecting module by an optical fiber; the data collecting module is provided with a second optical communication unit, a data collecting storage unit and a PCI-E interface chip which are connected in sequence; an external storage is connected outside a storage control unit. The real-time and compression-free transmission of a high-resolution digital medical image from an image sensor to the computer is realized, and the real-time and high-speed non-packed data transmission problem between the medical imaging equipment and the external computer is solved.
Description
Technical field
This utility model relates to a kind of data transmission system of digital medical imaging device.Particularly relate to a kind of data transmission system of the digital medical imaging device based on fiber optic communication.
Background technology
Digitized medical imaging devices, conventionally formed by imageing sensor, data transmission blocks, data reception module, date processing and display module, common form is that medical imaging devices comprises imageing sensor and data transmission blocks, outside computer comprises data reception module, date processing and display module, and medical imaging devices transmits data by certain high speed interface to computer.
Along with the raising of imageing sensor imaging resolution and frame per second, the data volume of the original image that imaging device obtains is increasing.The mode of imaging device output image can be divided into compression and the large class of non-compression two, or non real-time transmission and the large class of real-time Transmission two.Such as DTV of compress mode adopts MPEG-2, the Video coding mode such as H.264, or digital camera adopts the picture coding modes such as JPEG, JPEG2000 to compress original image, reduce to transmit after data volume, but in medical imaging field, in order to ensure not lose the details of image, seldom adopt compress mode.Non real-time transmission means be first by image buffer storage in local storage, then transmit by slower circuit, for example digital camera first exists photo in storage card, then by USB2.0 interface by photo upload to computer; Real-time Transmission mode is that the image that imageing sensor is continued to obtain is transferred to receiving terminal incessantly, and real-time Transmission mode needs transmission bandwidth to be greater than the data rate of imaging.
In industrial application, high-resolution industrial camera adopts gigabit ethernet interface or USB3.0 interface to computer transmit image data.Medical imaging devices, taking digital X ray machine as example, its previous data transfer mode adopting is that imageing sensor is with video format parallel output view data, and receiver module is a high-speed video capture card, by pci bus, data are inputted to computer, the shortcoming of this mode is to adopt multi-bit parallel transmission cable, and cable is thicker, and the reliability of connection is poor; At present new image sensor products has been equipped with gigabit ethernet interface, can transmit data by gigabit Ethernet, but the shortcoming of this mode be gigabit Ethernet limit bandwidth the frame per second of image transmitting.Taking the X-ray plane sensor of Japanese HAMAMATSU company as example, the pixel clock of its C10502D type sensor in the time of imaging is 30MHz, between valid data transmission period, A, two ports of B are exported the pixel data of a 14-bit simultaneously in each clock cycle, the highest data rate is (2x14-bit x30MHz)=840Mbps.While transmitting data by gigabit Ethernet, due to the expense of procotol and the time delay of hardware handles packet, generally can only realize the reliable and stable transfer of data of 600Mbps left and right, visible gigabit ethernet interface can not meet the real-time Data Transmission requirement of this imageing sensor.The new C10500D-42 type sensor of releasing of HAMAMATSU company has been equipped with gigabit ethernet interface, but this sensor only has port output data, the highest data rate is reduced to 420Mbps, cost is to have reduced imaging resolution (resolution of C10502D is 2268x60, and the resolution of C10500D-42 is 1480x60).
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of optical fiber that adopts as transmission medium, can support the data transmission system of the digital medical imaging device based on fiber optic communication of higher imaging speed.
The technical scheme that this utility model adopts is: a kind of data transmission system of the digital medical imaging device based on fiber optic communication, include the X-ray plane sensor for receiving X ray, the outfan connection data sending module of described X-ray plane sensor, described data transmission blocks is by optical-fiber connection data acquisition module, and described data acquisition module connects computer by PCI-E interface.
Described data transmission blocks includes data transmit-receive unit and the first optical communication element, wherein, the signal input part of described data transmit-receive unit connects the signal output part of described X-ray plane sensor, the signal output part of described data transmit-receive unit connects the signal input part of the first optical communication element, and the signal output part of the first described optical communication element is by optical-fiber connection data acquisition module.
Described data transmit-receive unit adopts the PLD that can support LVDS interface.
The optical module that the optical module that the optical module that described optical communication element employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.
Described data acquisition module includes the second optical communication element, data acquisition memory element, PCI-E interface chip and external memory storage, wherein, the signal input part of the second described optical communication element is by the signal output part of the first optical communication element in optical-fiber connection data sending module, the signal output part connection data of the second described optical communication element gathers the signal input part of memory element, the signal output part of described data acquisition memory element connects PCI-E interface chip, described data acquisition memory element also connects external memory storage, the signal output part of described PCI-E interface chip connects the PCI-E interface of computer.
Described data acquisition memory element includes data transmit-receive unit, storage control unit and the PCI-E interface chip control unit of serial connection successively, wherein, the input of described data transmit-receive unit connects the signal output part of the second described optical communication element, described storage control unit connects described external memory storage, and the signal output part of described PCI-E interface chip control unit connects the signal input part of described PCI-E interface chip.
Described data transmit-receive unit adopts the PLD that can support LVDS interface.
The optical module that the optical module that the optical module that the second described optical communication element employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.
The data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present utility model, realize real-time, the nothing compression transmission of high-resolution digital medical image from imageing sensor to computer, solve the transmission problem of the unpacked data in real time, at a high speed between medical imaging devices and outer computer, and bandwidth is low, the problem of poor reliability to have solved available data transmission means (parallel transmission, gigabit Ethernet transmission).
Brief description of the drawings
Fig. 1 is the transmission equipment entire block diagram of digital medical image;
Fig. 2 is data transmission blocks functional block diagram;
Fig. 3 is data acquisition module functional block diagram.
In figure
1: X-ray plane sensor 2: data transmission blocks
3: data acquisition module 4: computer
5: optical fiber 6:X ray
21: 22: the first optical communication elements in data transmit-receive unit
31: the second optical communication elements 32: data acquisition memory element
33: external memory storage 34:PCI-E interface chip
321: data transmit-receive unit 322: storage control unit
323:PCI-E interface chip control unit
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present utility model is described in detail.
As shown in Figure 1, the data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present utility model, mainly completes the Digital Image Data that X-ray plane sensor is produced and transmits.Include the X-ray plane sensor 1 for receiving X ray, in the present embodiment, X-ray plane sensor adopts the C10502D type X-ray plane sensor of HAMAMATSU company.The outfan connection data sending module 2 of described X-ray plane sensor 1, described data transmission blocks 2 is by optical fiber 5 connection data acquisition modules 3, and described data acquisition module 3 connects computer 4 by PCI-E interface.Data transmission blocks is carried out the forwarding based on optical fiber interface to the Digital Image Data of X-ray plane sensor acquisition, and data acquisition module receives the data of optical fiber interface forwarding and carries out the data interaction based on PCI-E bus interface modes with computer terminal.Data transmission blocks is connected by optical fiber with data acquisition module, and data acquisition module is connected by PCI-E interface with computer.PCI-E interface is current popular computer high speed bus interface, and the theoretical transmission rate of single channel reaches 2Gbps, and supports multiplexing, therefore also can support in the future more high-resolution image transmitting.Because fiber optic communication can realize the transfer rate that is greater than 1Gbps, adopt fiber-optic transfer mode than the mode that adopts gigabit Ethernet transmission and can support higher imaging speed.
As shown in Figure 2, described data transmission blocks 2 includes data transmit-receive unit 21 and the first optical communication element 22, wherein, the signal input part of described data transmit-receive unit 21 connects the signal output part of described X-ray plane sensor 1, the signal output part of described data transmit-receive unit 21 connects the signal input part of the first optical communication element 22, and the signal output part of the first described optical communication element 22 is by optical fiber 5 connection data acquisition modules 3.
Described data transmit-receive unit 21 adopts the PLD that can support LVDS interface, for example, the Cyclone of altera corp serial model No. is the fpga chip of EP3C25F324, EP3C16F484, EP4CE115F29C etc., also can select the PLD of other models on market.It is that the optical module that the optical module of SFP-GE-SX-MM850-A or optical module that model is M-D1203-L3320C or model are SFP-LX-SM1310 forms that described optical communication element 22 adopts model, also can adopt other model optical modules on market.
Described data transmission blocks is utilized the parallel data of the X-ray digital medical image that data transmit-receive unit 21 sends X-ray plane sensor to carry out packing and parallel-serial conversion taking frame as unit and is exported after processing, and output serial signal is sent to the first optical communication element, the first optical communication element is converted into the signal of telecommunication of input optical signal and carries out the transmission based on optical fiber, in this implementation, select SFP-GE-SX-MM850-A as optical communication element.
As shown in Figure 3, described data acquisition module 3 includes the second optical communication element 31, data acquisition storage and control unit 32, PCI-E interface chip 34 and external memory storage 33, wherein, the signal input part of the second described optical communication element 31 is by the signal output part of the first optical communication element 22 in optical fiber 5 connection data sending modules 2, the signal output part connection data collection storage of the second described optical communication element 31 and the signal input part of control unit 32, described data acquisition storage is connected PCI-E interface chip 34 with the signal output part of control unit 32, described data acquisition storage is also connected external memory storage 33 with control unit 32, the signal output part of described PCI-E interface chip 34 connects the PCI-E interface of computer 4.
Described data acquisition storage and control unit 32 include data transmit-receive unit 321, storage control unit 322 and the PCI-E interface chip control unit 323 of serial connection successively, wherein, the input of described data transmit-receive unit 321 connects the signal output part of the second described optical communication element 31, described storage control unit 322 connects described external memory storage 33, and the signal output part of described PCI-E interface chip control unit 323 connects the signal input part of described PCI-E interface chip 34.
Described data acquisition storage and control unit 32 adopt the PLD that can support LVDS interface, for example, the Cyclone of altera corp serial model No. is the fpga chip of EP3C25F324, EP3C16F484, EP4CE115F29C etc., also can select the PLD of other models on market.It is that the optical module that the optical module of SFP-GE-SX-MM850-A or optical module that model is M-D1203-L3320C or model are SFP-LX-SM1310 forms that the second described optical communication element 31 adopts model, also can adopt other model optical modules on market.
PLD above-mentioned for data transmit-receive unit is realized, the data that this unit comes the second optical communication element transmission go here and there and change after be stored in external memory storage into unit with frame, storage control unit is realized with above-mentioned PLD, waiting for that external memory stores is after enough view data, the transfer of data of buffer memory is arrived PCI-E interface unit by storage control unit, pci interface unit is made up of PCI-E interface chip control logic unit and PCI-E interface chip, PCI-E interface chip control unit is realized by above-mentioned PLD equally, the data of reception are correctly sent to PCI-E interface chip by it, PCI-E interface chip is input to computer by data with PCI-E bus interface modes, in the present embodiment, adopt the PEX8311 of PLX company chip as PCI-E interface chip.
The data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present utility model, X-ray plane sensor is exported to the data transmit-receive unit in data transmit-receive module by the view data collecting with parallel mode, data transmit-receive unit by parallel data pack and parallel-serial conversion after it is forwarded through optical fiber by the first optical communication element.The second optical communication element of data acquisition module receives the serial data transmitting by optical fiber and sends data transmit-receive unit to, data transmit-receive unit recovers parallel view data, and Bus Interface Unit is transferred to computer by image interface data through high speed bus interface.
Because bidirectional data transfers is supported in fiber optic communication, computer also can be by data acquisition module to the order of data transmission blocks transfer control.For example, the beginning of transmission system, the finish command and exposure parameter order etc.
Claims (8)
1. the data transmission system of the digital medical imaging device based on fiber optic communication, include the X-ray plane sensor (1) for receiving X ray, it is characterized in that, the outfan connection data sending module (2) of described X-ray plane sensor (1), described data transmission blocks (2) is by optical fiber (5) connection data acquisition module (3), and described data acquisition module (3) connects computer (4) by PCI-E interface.
2. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 1, it is characterized in that, described data transmission blocks (2) includes data transmit-receive unit (21) and the first optical communication element (22), wherein, the signal input part of described data transmit-receive unit (21) connects the signal output part of described X-ray plane sensor (1), the signal output part of described data transmit-receive unit (21) connects the signal input part of the first optical communication element (22), the signal output part of described the first optical communication element (22) is by optical fiber (5) connection data acquisition module (3).
3. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 2, is characterized in that, described data transmit-receive unit (21) adopts the PLD that can support LVDS interface.
4. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 2, it is characterized in that, the optical module that the optical module that the optical module that described optical communication element (22) employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.
5. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 1, it is characterized in that, described data acquisition module (3) includes the second optical communication element (31), data acquisition memory element (32), PCI-E interface chip (34) and external memory storage (33), wherein, the signal input part of described the second optical communication element (31) is by the signal output part of the first optical communication element (22) in optical fiber (5) connection data sending module (2), the signal output part connection data of described the second optical communication element (31) gathers the signal input part of memory element (32), the signal output part of described data acquisition memory element (32) connects PCI-E interface chip (34), described data acquisition memory element (32) also connects external memory storage (33), the signal output part of described PCI-E interface chip (34) connects the PCI-E interface of computer (4).
6. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 5, it is characterized in that, described data acquisition memory element (32) includes the data transmit-receive unit (321) of serial connection successively, storage control unit (322) and PCI-E interface chip control unit (323), wherein, the input of described data transmit-receive unit (321) connects the signal output part of described the second optical communication element (31), described storage control unit (322) connects described external memory storage (33), the signal output part of described PCI-E interface chip control unit (323) connects the signal input part of described PCI-E interface chip (34).
7. according to the data transmission system of a kind of digital medical imaging device based on fiber optic communication described in claim 5 or 6, it is characterized in that, described data transmit-receive unit (21) adopts the PLD that can support LVDS interface.
8. according to the data transmission system of a kind of digital medical imaging device based on fiber optic communication described in claim 5 or 6, it is characterized in that, the optical module that the optical module that the optical module that described the second optical communication element (31) employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.
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